12555440

素因数分解:

$2^4\times 5^1\times {\mathrm{156943}}^1$

素因数の和:156956

約数の個数: 20

約数和(自身を含む): 29191584

約数和(自身を除く): 16636144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 156943, 313886, 627772, 784715, 1255544, 1569430, 2511088, 3138860, 6277720, 12555440]

約数ペア:

[(1, 12555440), (2, 6277720), (4, 3138860), (5, 2511088), (8, 1569430), (10, 1255544), (16, 784715), (20, 627772), (40, 313886), (80, 156943)]